Is it worth the downgrade?

Ok, so I got iOS4 on, thinking it would be amazing, and that the jailbreak would come within a few days of it being out. However, I'm starting to doubt it. I have a 2G 8GB iPod Touch MC Model.

Can I downgrade by shift+restoring the ipsw? And do you think It's worth it? Because I would very much like to be jailbroken before Monday the 12th (UNTETHERED). However, this is PREFERABLY without having to downgrade. But it doesnt look like an untethered jailbreak is coming to iOS4 anytime soon, so i'm thinking of downgrading. Your thoughts?